README.md

@@ -26,6 +26,9 @@ Since the container uses Docker's internal event reporting, it needs access to t
 moment, only access via UNIX socket is possible. Because of that, the socket has to be handed
 into the container (*-v /var/run/docker.sock:/var/run/docker.sock*).
 
+**Note: do not change hostname for container, since the code relies on the hostname to be 
+the short id!**
+
 ### Single IP / All IPs
 This option is used if your Docker Host has only one IP or if there is no need to differentiate between different IPs regarding wether a Web App
 is available on it.